iFrame HTML Injection Mechanism

This setup demonstrates the secure `about:blank` injection method, ready for your large Eaglercraft file.

Injecting placeholder content...
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This file is from 03/30/2025

Game will launch in 5...

`; // 2. The core injection logic using about:blank iframe.onload = function() { // Only execute the injection logic once if (iframe.contentWindow.document.body.childNodes.length === 0) { try { const doc = iframe.contentWindow.document; doc.open(); doc.write(htmlContent); doc.close(); // Wait for the content to render, then show the iframe smoothly setTimeout(() => { loadingMessage.style.display = 'none'; iframe.style.opacity = '1'; }, 100); console.log('Content successfully injected into about:blank iframe.'); } catch (error) { console.error('Error injecting content:', error); loadingMessage.innerHTML = '
Injection Failed! See console for details.
'; loadingMessage.classList.replace('bg-yellow-100', 'bg-red-100'); loadingMessage.classList.replace('text-yellow-800', 'text-red-800'); } } }; // Set the initial src to trigger the onload event iframe.src = 'about:blank'; iframe.style.opacity = '0'; // Start invisible